    body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
  }

  .login-container {
    position: fixed;
    top: calc((100% - 300px) / 2);
    left: calc((100% - 400px) / 2);
    background-color: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, 0.1);
    width: 300px;
  }

  .login-container h2 {
    text-align: center;
  }

  .login-container input {
    width: 93%;
    padding: 10px;
    margin: 10px 0;
    border-radius: 5px;
    border: 1px solid #ccc;
  }

  .login-container button {
    width: 100%;
    padding: 10px;
    border: none;
    border-radius: 5px;
    background-color: #007bff;
    color: white;
    cursor: pointer;
    margin-top: 10px;
  }

  .login-container button:hover {
    background-color: #0056b3;
  }

  .role_choose {
    width: 93%;
    padding: 10px;
    margin: 10px 0;
    border-top: 1px dashed #ccc;
    display: flex;
    justify-content: space-around;
  }

  .role_choose input {
    margin: 0;
  }

  .role_choose span {
    font-family: Arial, sans-serif;
    font-size: 14px;
  }

  .role_choose div {
    flex: 1;
    flex-direction: column;
    text-align: center;
  }
    